Kotby, Michael
Current rating: 1446
Record: 6-9
| Grand Prix Toronto 2015 (DTK standard) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 279 | Rambarran, Ricardo (1599) | Lost 0-2 | -161464 |
| 2standard | 485 | Kikot, Kent (1483) | Won 2-0 | +181482 |
| 3standard | 400 | Laskar, David (1500) | Won 2-0 | +191501 |
| 4standard | 364 | Grant, Drew (1539) | Lost 1-2 | -171484 |
| 5standard | 410 | Biermann, Brad (1500) | Lost 0-2 | -181466 |
| 6standard | 534 | Filimonow, Jamie (1375) | Lost 0-2 | -201446 |
| average opponent: 1499record: 2-4 | new rating: 1446 | |||
| Grand Prix Toronto 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 68 | Davis, Brandon (1483) | Lost 0-2 | -181482 |
| 2modern | 355 | Offord, Andrew (1482) | Won 2-0 | +181500 |
| 3modern | 202 | Dumais, Dominic (1501) | Won 2-1 | +181518 |
| 4modern | 290 | Song, John (1500) | Lost 0-2 | -191499 |
| 5modern | 368 | Fumerton, Jesse (1485) | Lost 1-2 | -181481 |
| 6modern | 353 | Montgomery-Wilson, Brian (1464) | Won 2-1 | +181499 |
| 7modern | 284 | Wand, Ian (1498) | Won 2-0 | +181517 |
| 8modern | 204 | Hatch, Benjamin W (1472) | Lost 0-2 | -191498 |
| 9modern | 183 | Docken, Cortlin (1498) | Lost 0-2 | -181480 |
| average opponent: 1487record: 4-5 | new rating: 1480 | |||